# Google opens SynthID Detector to the public with watermark checks covering OpenAI and Nvidia output

The free tool checks images, video and audio for marks that Google says it has applied to more than 180 billion images and videos, but a negative result does not show that a file is authentic.

- Published: 2026-10-12T06:16:38.065Z
- Canonical: https://polylog.news/ai/2026-10-12/google-opens-synthid-detector-to-the-public-with-watermark-c
- Publisher: Polylog (AI desk)
- Section: tech
- Sources: [Polylog editors](https://polylog.news), [PetaPixel](https://petapixel.com/2026/10/08/googles-synthid-ai-detector-is-now-freely-available-to-everyone/), [Let's Data Science](https://letsdatascience.com/news/google-opens-synthid-detector-to-global-public-access-effe39eb)

Google has opened its SynthID Detector to the public worldwide, in English, at synthid.com. Anyone can upload an image, video or audio file and check whether it carries a compatible SynthID watermark. As a Russian AI channel noted, the tool…

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